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January 29, 2015

January 29, 2015

Posted by **abby** on Sunday, March 11, 2012 at 3:32pm.

- algebra -
**Henry**, Monday, March 12, 2012 at 11:43pmThe ladder, ground, and wall form a rt. triangle:

r = 8Ft = hyp.

X = 3Ft = hor. side.

Y = Wall = ver. side.

cosA = X/r = 3/8 = 0.375.

A = 68 Deg.

B = 90 - 68 = 22 Deg. = Angle ladder makes with wall.

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